US2600514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elliptical type street lighting reflector incorporating parabolic reflecting areas
Assignee: Individual
•
Filing: 1948-02-02
•
Granted: 1952-06-17
•
Expires: 1968-02-02
Abstract
No abstract record available.
Inventors
- 👤 Percival H Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:31
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1677678A
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US1855867A
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GB448645A
Cited
CH190206A
Cited
US2140646A
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US2196548A
Cited
FR810790A
Cited
US2200611A
Cited
US2258875A
Cited
US2259321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |